Recently, I have been doing Report, using Crystal Enterprise 10, the front desk query page is ASP.NET C #, encountered a very strange problem, suspected of being the Crystal Report's bug.
Report uses the data source of Store Procedure, incorporates parameters by the query page, and there are two parameters, one is the parameters required to call the SP, one is directly transmitted to Report, the query page For these two parameters, there is no difference. But sometimes there is a very strange problem. The parameters directly passing to Report will be inexplicably lost. There is no found in what situation and this is not found. The method of solving, one is to redo Report, there is a simple approach to declare this direct pass to Report, which is also declared in SP, so this parameter becomes the parameter transmitted to the SP.
